YHM Specter Black Diamond Carbine Upper 1:9

 * Mil. Spec. Forged 7075-T6 Aluminum YHM Flat Top Upper Receiver
* "T" Marked Upper Receiver
* Forward Assist
* Mil. Spec. Bolt Carrier Assembly
* 16" 4140 Steel Barrel, Heat Treated to RC 25-32
* Chambered in 5.56 N.A.T.O., Chrome-Lined with either a 1:9" or Twist
* YHM Diamond Fluting Improves Rigidity and Aids in Barrel Cooling
* YHM Phantom 5C2 Flash Hider / Compensator (YHM-28-5C2)
* YHM Specter Length Diamond Handguard (YHM-9637-DX)
* YHM Forearm Endcap (YHM-9484-A)
* YHM Low Profile Gas Block (YHM-9384)
* YHM Forearm Mounted Flip Front Sight (YHM-9627)
* YHM Flip Rear Sight (YHM-9680)

Total Weight: 4.8 Pounds